Question

35) A balloon starting from the ground has been ascending vertically at a uniform velocity for 4.5 s and a stone left fall from it reaches the ground in 7 s. The velocity of the balloon when the stone was left fall is [use g = 9.8 m/s?]
1) 20.88 m/s 2) 20 m/s 3) 22 m/s 4) 24 m/s​

Answer 1

Answer:

1) 20.88 m/s

Explanation:

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